Four terminal switch

Details Four terminal switch Four terminal switch

1982-07-26

1987-03-17

Marcus, Stephen

Electricity: circuit makers and breakers

Electric switch details

Contact

200284, 200159A, 200340, 200 16B, H01H 312, H01H 2168

Patent

active

046509453

ABSTRACT:
A switch has four separate electrical terminals. A first electrical contact selectively electrically bridges three of the four terminals while a second electrical contact selectively bridges the fourth terminal and one of the first three.

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patent: 3958090 (1976-05-01), Garcia
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patent: 4064381 (1977-12-01), Mullen et al.
patent: 4225758 (1980-09-01), Kondo et al.
patent: 4282414 (1981-08-01), Johnston et al.
patent: 4317972 (1982-03-01), Kjellberg

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